VOL-4274 Move platform.go file to voltha-lib-go

Change-Id: Ic28d8187fe2fc7ddcd0af8f582898eb6e1fddce9
diff --git a/go.mod b/go.mod
index 4e92e23..f93cba4 100644
--- a/go.mod
+++ b/go.mod
@@ -16,7 +16,7 @@
 	github.com/google/gopacket v1.1.17
 	github.com/looplab/fsm v0.2.0
 	github.com/opencord/omci-lib-go v1.3.3
-	github.com/opencord/voltha-lib-go/v7 v7.0.0
+	github.com/opencord/voltha-lib-go/v7 v7.0.1
 	github.com/opencord/voltha-protos/v5 v5.0.0
 	github.com/stretchr/testify v1.7.0
 	google.golang.org/grpc v1.41.0